Air-transmitter.



PRYKBERG.

AIR TRANSMITTER.

APPLICATION FILED APR. 19, 1910 1,000,505 Patented Aug. 15, 1911.

- /NVENTOAZ,

W] T NE 8555' WXW- "ATTORNEY.

ooo soo.

but now of Chicopee Falls,

I s @Ennli/n Application filed April 15, 291%. Florist lilo. 55%,5i3.

To all whom it may concern:

Be it known that l, JAcoslnYKnnno, citizen of the United States of America, forn'ierly of Tarrytown, State of llew York,

county of H3111 pden State of ltllassuchnsetts, haveinvented new and useful improvements in Air-Trainsmitters, of which the, following is a specificstion.

The present invention relates to improve ments in what 1 term on air transmitter as used in connection with motor vehicles for inflating the pneumatic tires of the wheels.

Broadly, the invention consists in attaching'an annular plate member to the spokes of the wheel and engaging said plate by another annular plate of similar construc tion, the two plates being so constructed as to form an annular air-space between the some, the second plate being provided with means for automatically holding it against the first mentioned annular plate which is secured to the spokes of the wheel.

An object of the invention consists in providing a. device to continuously transfer eir under pressure from a suitable pump to and through the air transmitted to the tire that is to be inflated, either when the'inotor vehicle is standing still or traveling over the roadway.

Referring to the drawings forming part of this application,-Figure 1 is a vertical sectional view on the line 1??1 of Fig. 3 showing the two annular rings in place as used. Fig. 2 a partial side elevation of one of the vehicle wheels showing the manner of attaching one of the annular plates to the spokes thereof. Fig. 3 is a side elevation looking from the left of Fig. 1. and. showing the manner of attaching the other annular member to the chassis part of, the vehicle. 4; is a detail, sectional view of the annular plate members in separated relstion, and indicating the rib and ball-rz1cc construction for forming an airtight joint between the two annular members.

Referring to the drawings in detail a indicates the axle part of the vehicle; 7) the spokes of the wheel that are'sccured to the hub member a by means of the usual clamping plate ci; f a pneumatic tire, of any of the well known malzenwhich is provided with the usual inflation valve-stem desig noted at Secure to the spokes b of the wheel, and

outside of tho broke-drum h an annular plate member j designates suitable slips for securing the annular member to the spokes of thclivheel. 'lhe annular plate member '6 is provided on its inner surface with ball-races Z: and unnular projecting ribs m, n, and 0. Entermediate of the rib o is an enlarged annular groove Engaging the annular plate member 6 is s second annular member 5 which is provided with projections r, s, and 25 which engage or fit grooves '11 and 3:), and the shoulder '21) in the annular plate member The annular member g is also provided with grooves m and 1 which receive the annular ribs n and o o the plate member z designates ontirictionbslls which ongage the bsll-races 7c of the annular plate member and correspondingly shaped. races 70 in the member g whereby the friction between the two members is greatly reduced luring; the rotation or the Wheel. The en nnlsrmernvber q is also provided withan enlarged groove g? "which registers with the groove 1') in the annular member 2'.

"in ordsr to hold the annular member g at all times in engagement with the annular plate member 2', two plates are secured to the member and are provided with inwardly projecting ornis which pass through openings in the casitings il that is attached to the springs l of the vehicle chassis. The plate 5, which is located above the brake- :lrum It is provided with an opening thoroth-rough for receiving alpipe 6 that isvconnected to a suitable air compression pump 7. This pipe terminates in the annular registering grooves 'ancl under pressure f i om the "pump 7 can readily ass into this enlarged annular passageway and from through the short pipe connection 8 which leads to the vnlve-stcrn g of the tire The lower 'alatc 9, is provided with 3. solid stern. portion 10 which projects through an opening in the nsting 3; ant located on the stains which project from the annular plate g are springs 11 and 12 which are normally under compression and encircle the stems l0 and 13. These springs are located between the plates and portions 14 and 15 of tho part 3. From this construction it willbe seen that the springs always force the annular member g outward toward the fixed annular into the annulus pl whereby the air v 9 and the member 11 thus preventing the escape of the compressed air from thegroove p during the running of the wheel. It will therefore be seen' from this construction that air, under pressure, can at all times be forced into the tires 7 from the ump 7 through the with an annular groove secured to t e wheel and adapted to rotate therewith, a pipe connection leading from the valve-stem to a groove in'the annular member, a second annula g' member secnredzto the stationary part of the vehicle and having an annular groove that is adapted to register with the annular no groove of the 'first member carried by the F wheel, the two annular members being provided, with ribbed and grooved constructions forming an air-tight joint therebetween,

means for forcing air into the registering 25 grooves under pressure, and a pipe connec:

tioir leading from the registering grooves to the valve-stem, whereby the tire is inflated during the rotation of the wheel.

' JACOB FRYKBERG.

Witnesses:

W. C. Annmnon, WM. RIXMANN. 

